I've deployed BES against Exchange 2003, but know very little about it. I now have a problem that is testing the limits of my knowledge.

One user recently stopped getting messages on the phone. They appear in the mailbox and seem to be ok in Outlook. The user can send mail correctly. SMS works. I can send PIN messages to the phone from the BES console. The emails never synchronize. I've restarted the server just to verify it's not gone insane. The user actually was expecting a new phone, so we activated it when it came in just in case the phone itself was malfunctioning. No Luck.

The log files are basically undecipherable. I don't see anything obviously wrong, though.

Check and make sure the user's inbox is still enabled for redirection. Right click the user and select choose folders for redirection from the blackberry server manager.

If it is turned off, you can re-enable it, Then check this link for information and see if this is what happened.

Also check and make sure the user doesn't have the messages filtered, if they were playing with that trying to adjust the filters for messages going to the BB they might have accidently filtered everything.